CN212193774U

CN212193774U - Plastic extruder is used in PVC plastic pellet production

Info

Publication number: CN212193774U
Application number: CN202020433693.4U
Authority: CN
Inventors: 张万宁; 李静利; 孙花瑞; 李杏伟; 刘娅琳
Original assignee: Henan Huixin Plastic Industry Co Ltd
Current assignee: Henan Huixin Plastic Industry Co Ltd
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2020-12-22
Anticipated expiration: 2030-03-30

Abstract

The utility model provides a PVC plastic pellet production is with plastics extruder, relate to the processing field of plastics, including the extruder body, the outer fixed cover of discharge gate of extruder body is equipped with the fixed disk cover, the extruder body is connected with the non-open end off-centre of fixed disk cover, the open end of fixed disk cover rotates and is connected with the extrusion disk cover, the extrusion disk cover deviates from fixed disk cover one end and seals, a plurality of extrusion punch combination have been seted up to the blind end of extrusion disk cover, the extrusion disk is sheathe in and is still protruding the butt joint pipe that is equipped with a plurality of orientation fixed disk cover directions, butt joint pipe and extrusion punch combination one-to-one. The utility model has the innovation point that one extruder is provided with a plurality of extrusion hole groups, and the extrusion hole groups are all positioned on the same extrusion disc sleeve, and the extrusion disc sleeve can be rotated to convert the specification of the discharged material, thereby realizing the purpose of product diversification; the positioning line is matched with the locking mechanism to perform coarse positioning and fine positioning on the extrusion disc sleeve, so that the material is ensured to completely enter the butt joint pipe without leakage, and the structure is precise and reasonable.

Description

Plastic extruder is used in PVC plastic pellet production

Technical Field

The utility model belongs to the technical field of the processing of plastics and specifically relates to a plastics extruder is used in PVC plastic pellet production.

Background

Polyvinyl chloride, also called PVC, is widely applied to the fields of construction industry, daily necessities, pipes, cables and wires, and is one of the most popular plastics in world. The granulation process of PVC is that an extruder is used for heating and extruding the cooled and kneaded raw materials into bar stocks, and then the bar stocks are cut into plastic granules by a granulator.

However, the discharge port of the extruder is integrated with the extruder body, the diameter of the extruded material depends on the shape of the discharge port, the extruded material is not adjustable, and the granulated material has a single particle size and cannot meet the requirements of different customers.

Therefore, an extruder with different discharge ports is needed at present to realize product diversification and provide higher selectivity for customers.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned circumstances, for overcoming prior art's defect, the utility model aims at providing a PVC is plastic extruder for plastic pellet production, adopts convertible activity extrusion dish cover, increases the specification model of extruded material.

The utility model provides a its solution is, a PVC plastic pellet production is with plastics extruder, including the extruder body, its characterized in that, the outer fixed cover of discharge gate of extruder body is equipped with the fixed disk cover, and the fixed disk cover is the open tubular structure of one end, the extruder body is connected with the non-open end off-centre of fixed disk cover, and the open end of fixed disk cover rotates and is connected with the extrusion disk cover of tube-shape, and the extrusion disk cover deviates from fixed disk cover one end and seals, and the blind end of extrusion disk cover has seted up a plurality of extrusion pore groups, still extrudes the protruding butt joint pipe that is equipped with a plurality of orientation fixed disk cover directions on the extrusion disk cover, and butt joint pipe and extrusion pore group one-to-one correspond extrude the biggest external diameter of pore group and be less than the internal diameter of butt joint pipe, the discharge gate of extruder body and the.

Preferably, the extrusion hole groups are uniformly distributed by taking the axis of the extrusion disc sleeve as the center, each extrusion hole group comprises at least one unit hole, and the diameters of the unit holes in the same extrusion hole group are consistent.

Preferably, a sealing ring is embedded on the end surface of the butt joint pipe close to one side of the discharge hole.

Preferably, the fixed disk sleeve is carved with the positioning line.

Preferably, the fixed plate sleeve is provided with a locking mechanism, the length direction of the locking groove is parallel to the axis of the basic plate sleeve, the circumferential surface of the fixed plate sleeve is provided with a sliding groove, a locking block is connected in the sliding groove in a sliding mode, the moving direction of the locking block is parallel to the axis of the fixed plate sleeve, a connecting portion is fixedly connected to the locking block, a handle is installed on the connecting portion, a stop block is fixedly arranged at one end, close to the extrusion plate sleeve, of the sliding groove, and the circumferential surface of the extrusion plate sleeve is provided with a plurality of locking grooves matched with the locking block.

Preferably, a plurality of handles are convexly arranged on the circumferential surface of the extrusion disk sleeve.

The utility model has the advantages that: compared with the prior art, the extruder has the innovation point that one extruder is provided with a plurality of extrusion hole groups, the extrusion hole groups are all positioned on the same extrusion disc sleeve, and the discharge specification can be converted by rotating the extrusion disc sleeve, so that the aim of product diversification is fulfilled; the positioning line is matched with the locking mechanism to perform coarse positioning and fine positioning on the extrusion disc sleeve, so that the material is ensured to completely enter the butt joint pipe without leakage, and the structure is precise and reasonable.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a side sectional view of the present invention;

fig. 3 is a schematic structural view of the fixed disk sleeve and the extrusion disk sleeve, in which the locking mechanism is exploded.

Detailed Description

The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.

As shown in fig. 1-3, a plastic extruder for producing PVC plastic particles comprises an extruder body 1, the extruder body 1 comprises a base 101, and a heating device 103, a feeding device 102 and a cylinder 104 which are carried on the base 101, a motor-driven auger 105 is arranged in the cylinder 104, one end of the cylinder 104, which is far away from the feeding device 102, is a discharge port, which is the prior art and is not described in detail, the plastic extruder is characterized in that a fixed disk sleeve 2 is fixedly sleeved outside the discharge port of the extruder body 1, the fixed disk sleeve 2 is a cylindrical structure with an open end, the extruder body 1 is eccentrically connected with the non-open end of the fixed disk sleeve 2, in detail, the fixed disk sleeve 2 is fixedly sleeved outside the cylinder 104 of the extruder body 1, the open end of the fixed disk sleeve 2 is rotatably connected with the cylindrical extrusion disk sleeve 3, the fixed disk sleeve 2 is collinear with the axis of the extrusion disk sleeve 3, and the fixed disk sleeve 2 is always stationary, the extrusion disk sleeve 3 can realize coaxial rotation movement with the fixed disk sleeve 2 under the action of external force, one end of the extrusion disk sleeve 3, which is far away from the fixed disk sleeve 2, is closed, the closed end of the extrusion disk sleeve 3 is provided with a plurality of extrusion hole groups, the extrusion hole groups are used for outputting materials, the extrusion disk sleeve 3 is also convexly provided with a plurality of butt joint pipes 33 which face the direction of the fixed disk sleeve 2, namely the butt joint pipes 33 are arranged in the extrusion disk sleeve 3, the butt joint pipes 33 are in one-to-one correspondence with the extrusion hole groups, the maximum outer diameter of the extrusion hole groups is smaller than the inner diameter of the butt joint pipes 33, the extrusion hole groups are completely covered by the corresponding butt joint pipes 33, the materials entering the butt joint pipes 33 can be completely output from the extrusion hole groups in the butt joint pipes 33 when the materials are output, because the discharge hole is eccentrically connected with the fixed disk sleeve 2, and any extrusion hole group is corresponding to the discharge hole, the extrusion hole groups are all positioned on the same circle with the axis of, the discharge port of the extruder body 1 is in friction contact with the end surface of the butt joint pipe 33. The butt joint pipe 33 is in butt joint with the discharge port, materials smoothly enter the butt joint pipe 33 from the discharge port, are continuously pushed forward under the extrusion force of the auger 105 and are output from the extrusion hole group, the extrusion disc sleeve 3 is rotated, different extrusion hole groups are replaced to correspond to the discharge port, the output materials can be changed into different diameters, and the purpose of outputting material specification diversity is achieved.

The extrusion hole groups are uniformly distributed by taking the axis of the extrusion disc sleeve 3 as the center, each extrusion hole group comprises at least one unit hole, and the diameters of the unit holes in the same extrusion hole group are consistent. The unit holes control the output specification of the material, the unit holes in different extrusion hole groups are different in diameter, the unit holes in the same extrusion hole group are single or are arranged in a spaced array mode, the extrusion hole group of a single unit hole can only output one bar at a time, the larger the diameter of the unit hole is, the larger the diameter of the output bar is, and the extrusion hole group consisting of the unit holes is used for outputting a plurality of bars simultaneously, so that the purpose of extruding a plurality of bars at one time is achieved.

And a sealing ring is embedded on the end surface of one side of the butt joint pipe 33, which is close to the discharge hole. The material extruded by the extruder is in a semi-solid state, but the material is pushed and extruded by the packing auger 105, and in order to prevent the material from leaking between the butt joint pipe 33 and the discharge port, a sealing ring is additionally arranged on the butt joint surface of the butt joint pipe 33 and the discharge port, and compared with other sealing parts, the sealing ring is worn and is easier to replace.

The fixed disk sleeve 2 is carved with a positioning line 21. The positioning line 21 is located at the position, closest to the discharge port of the extruder, on the outer circumferential surface of the fixed disc sleeve 2, the positioning line 21 is used for roughly positioning the position of the extrusion hole group, after the extrusion disc sleeve 3 is rotated, the required extrusion hole group is turned to the positioning line 21, and the position, closest to the positioning line 21, of the extrusion hole group is the butt joint position of the extrusion hole group and the discharge port.

Be equipped with locking mechanism 4 on fixed disk cover 2, the length direction of locking groove 31 is parallel with the axis of basic disk cover, spout 41 has been seted up on fixed disk cover 2's the periphery, sliding connection has locking piece 42 in spout 41, and the moving direction of locking piece 42 is parallel with fixed disk cover 2's axis, fixedly connected with connecting portion 43 on the locking piece 42, installs handle 44 on connecting portion 43, be close to the fixed dog 45 that is equipped with of one end of extruding disk cover 3 on spout 41, extrude and set 3 seted up on the periphery with locking piece 42 matched with a plurality of locking grooves 31, be sliding connection between locking groove 31 and the locking piece 42. Whether the butt joint pipe 33 is in butt joint with the discharge port of the barrel 104 is not seen from the outside by an operator, so that the external locking mechanism 4 is required to be accurately positioned, the locking grooves 31 and the extrusion hole groups are in one-to-one correspondence, the handle 44 is utilized to drive the slider to move, the slider moves along the sliding groove 41 and slides into the locking grooves 31, the circumferential movement of the extrusion disc sleeve 3 is limited, any extrusion hole group is in butt joint with the discharge port when the extrusion disc sleeve 3 is locked, and the stopper 45 is used for stopping the locking block 42 from being separated from the sliding groove 41.

A plurality of handles 32 are convexly arranged on the circumferential surface of the extrusion disk sleeve 3. It is inconvenient to rotate extrusion plate cover 3 by bare-handed, adds and establishes handle 32 after, and the operating personnel of being convenient for rotates extrusion plate cover 3.

When the utility model is used, according to the using method of the existing extruder, the raw materials are put into the feeding device 102 for heating and extruding, then are conveyed into the butt joint pipe 33 from the discharge hole, and finally are output from the extrusion hole group; when the specification of output materials and the number of output bars need to be changed, the discharging is suspended, the locking mechanism 4 is opened, the handle 32 is utilized to rotate the extrusion disc sleeve 3, the required extrusion hole group is rotated to the position nearest to the positioning line 21, then the locking block 42 is pushed into the locking groove 31 nearest to the locking block, at the moment, the butt joint pipe 33 corresponds to the material conveying port, and the materials with the required specification can be obtained by continuously discharging.

The above-mentioned embodiments are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design concept of the present invention should be included in the protection scope defined by the claims of the present invention.

Claims

1. A plastic extruder for producing PVC plastic particles comprises an extruder body (1), it is characterized in that a fixed disk sleeve (2) is fixedly sleeved outside a discharge port of the extruder body (1), the fixed disk sleeve (2) is of a cylindrical structure with one open end, the extruder body (1) is eccentrically connected with the non-open end of the fixed disc sleeve (2), the open end of the fixed disc sleeve (2) is rotatably connected with a cylindrical extrusion disc sleeve (3), one end of the extrusion disc sleeve (3) departing from the fixed disc sleeve (2) is closed, the closed end of the extrusion disc sleeve (3) is provided with a plurality of extrusion hole groups, the extrusion disc sleeve (3) is also convexly provided with a plurality of butt-joint pipes (33) facing the direction of the fixed disc sleeve (2), the butt joint pipes (33) correspond to the extrusion hole groups one by one, the maximum outer diameter of the extrusion hole groups is smaller than the inner diameter of the butt joint pipes (33), the discharge port of the extruder body (1) is in friction contact with the end face of the butt joint pipe (33).

2. The plastic extruder for producing PVC plastic particles according to claim 1, wherein the plurality of extrusion orifice groups are uniformly distributed around the axis of the extrusion disk sleeve (3), each extrusion orifice group includes at least one unit orifice, and the unit orifices in the same extrusion orifice group have the same diameter.

3. The plastic extruder for producing PVC plastic particles as claimed in claim 1, wherein a sealing ring is embedded on the end surface of the butt joint pipe (33) close to the discharge port.

4. The plastic extruder for producing PVC plastic particles according to claim 1, wherein the fixing disk sleeve (2) is engraved with a positioning line (21).

5. The PVC plastic extruder for plastic particle production according to claim 1 or 4, wherein the fixed disk sleeve (2) is provided with a locking mechanism (4), the length direction of the locking groove (31) is parallel to the axis of the base disk sleeve, the circumferential surface of the fixed disk sleeve (2) is provided with a sliding groove (41), the sliding groove (41) is internally connected with a locking block (42), the moving direction of the locking block (42) is parallel to the axis of the fixed disk sleeve (2), the locking block (42) is fixedly connected with a connecting part (43), the connecting part (43) is provided with a handle (44), one end of the sliding groove (41) close to the extrusion disk sleeve (3) is fixedly provided with a stop block (45), and the circumferential surface of the extrusion disk sleeve (3) is provided with a plurality of locking grooves (31) matched with the locking block (42).

6. The plastic extruder for PVC plastic particle production according to claim 1, wherein the circumferential surface of the extrusion disk sleeve (3) is provided with a plurality of handles (32) in a protruding manner.